This month’s report on Google’s autonomous car fleet reveals two new features coming to the company’s prototype car, the ability to honk the horn and a hum similar to most non-electric cars.
The sound of a car horn might be the stuff of nightmares for frequent drivers, but Google believes it can be a powerful tool that may prevent accidents on the road. For the first few months, the car honked internally, but Google recently made the honk audible to nearby cars

Internet of Things